3289| 10
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關(guān)于金屬硬度問題 |
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點(diǎn)評(píng)
可以這樣的;但是如果你這標(biāo)注偏差范圍差值給的大,比如30-45HRC也可以啊,但會(huì)對(duì)產(chǎn)品有影響的,對(duì)單件產(chǎn)品硬度不均勻性有影響的,批量產(chǎn)品的好壞也有影響。
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